City of Honolulu
Working to Remedy Sewage Dump in Canal
April 6, 2006
Last week, crews patched the cracked 42-in.
force main that has released more than 10 million gal of raw
sewage into Hawaii’s Ala Wai Canal by filling cracks with lead
wool, wrapping the main with a resin fiberglass material and
covering it with a reinforced concrete jacket, according to city
of Honolulu spokesman Bill Brennan. The three truckloads of
concrete used as a cover will take 24 hours to cure, The
Honolulu Advertiser reported.
Hawaii’s Department of Health is investigating
if the break could have been prevented, said department
spokesman Kurt Tsue. Fines are possible, and the city may have
to conduct a full environmental impact study.
Since the main broke, raw sewage has traveled
down the Ala Wai Canal, into the Ala Wai boat harbor and out to
sea. Traces of it showed up at surf spots outside the harbor
channel and some people feared kona winds might carry the waste
to Waikiki Beach. Waikiki lifeguards said they've had thousands
of inquiries about the safety of the water, according to The
Honolulu Advertiser.
Bryan Cheplic, spokesman for the lifeguards,
said that although people were advised not to, lifeguards
couldn't keep them out of the water. Bad weather, however,
prevented a lot of people from going to the beach. George
Carayannis, who lives on a boat in the harbor, said the city’s
decision to dump untreated sewage into the canal was
unacceptable because of the health hazards, according to The
Honolulu advertiser. He reported seeing tourists, surfers and
fishermen in the water since the main broke.
Tsue said sewage could drift to Waikiki, and
tests are being conducted daily between Diamond Head and Kewalo.
A kona wind and high tide could also bring sewage back to Ala
Moana Beach Park, which for the most part is safe, he said.
Warning signs to stay out of the water have been posted at Magic
Island.
The city had no alternative to dumping sewage
into the canal, according to Tsue, because the broken pipe is a
force main, which is under constant heavy pressure. The city
tried to truck material away, but once the main was shut, sewage
would overflow into buildings.
Officials said the breaks in the line on
Kai'olu Street appear to have been caused by the heavy flow of
rainwater into the sewage system and the settling problems of
the old sewer line. Repairs were difficult because rain kept
filling the area around the pipe and because of the need to work
around underground utilities, The Honolulu Advertiser reported.
The sewer line was built in 1964 to carry raw
sewage from the Beachwalk Wastewater Pumping Station toward the
Sand Island Wastewater Treatment Plant. The line carries most of
the sewage generated in Waikiki, Manoa and Mo'ili'ili, about 15
mgd, according to officials.
Source: The Honolulu Advertiser
April 6, 2006 |